DJI O4 Ground Station Technical Specifications

Single Point Accuracy (Uncalibrated):
Horizontal: 1.5 m (RMS)
Vertical: 3.0 m (RMS)

Satellite-Based Differential Accuracy:
Convergence Time: 20 min
Horizontal: 30 cm (RMS)
Vertical: 40 cm (RMS)

Network RTK Calibration**:
Horizontal: 1.0 cm (RMS) + 1 ppm
Vertical: 3.0 cm (RMS) + 1 ppm

* Accuracy is subject to environmental conditions. The stated value reflects performance under ideal circumstances, including an unobstructed sky view, favorable satellite geometry, minimal ionospheric disturbance, and no electromagnetic or multipath interference.
** "To achieve the highest base station coordinate accuracy for surveying and precision flight paths, calibrate only under optimal conditions. Ensure you have an open, unobstructed sky view with low ionospheric activity and zero electromagnetic or multipath interference. For the best results, use a Network RTK mountpoint connected to at least four satellite systems.

902 MHz to 928 MHz: < 30 dBm (IC), < 16 dBm (MIC)
1.430 GHz to 1.444 GHz: < 35 dBm (SRRC)
2.400 GHz to 2.4835 GHz: < 33 dBm (IC), < 20 dBm (CE/SRRC/MIC)
5.150 GHz to 5.250 GHz: < 23 dBm (IC/CE)
5.725 GHz to 5.850 GHz: < 33 dBm (IC), < 14 dBm (CE), < 30 dBm (SRRC)

Approved operating frequencies change depending on your country or region. Always consult your local laws and regulations to ensure you are operating legally.

Strong Interference (Dense Buildings, Residential Areas, etc.): approx. 1.8 to 6 km

Medium Interference (Suburban Areas, City Parks, etc.): approx. 6 to 18 km

Weak Interference (Open Spaces, Remote Areas, etc.): approx. 18 to 40 km

The flight distances listed above were tested using a Matrice 400 under IC standards, flying in a clear area with typical levels of interference. Please use these numbers as a general baseline, as your actual flight range will depend on your specific environment.

Low Interference and Obstructed by Buildings: approx. 0 to 0.5 km

Low Interference and Obstructed by Trees: approx. 0.5 to 3 km

Range data is based on Matrice 400 testing (IC standard) in an obstructed area with average interference. These figures serve only as a baseline reference; actual flight distances will vary.

OcuSync 4 Pro external directional antenna × 4
OcuSync 4 Pro internal directional antenna × 8

2.4G/5.2G/5.8G: 2T4R
Sub2G: 2T2R

This antenna is equipped with a standard reverse polarity SMA connector.

Ethernet Access: Adaptive Ethernet port; requires ≥ 100Mbps bandwidth and ≤ 100ms latency*
4G Access: Requires the DJI Cellular Dongle 2**

* To prevent the device from going offline and to maintain smooth video quality, please ensure all requirements are met.

** Available for separate purchase. Regional restrictions may apply, so please reach out to our team to confirm availability in your area.

Gateway Mode:
1. Max Power Consumption (Including Heating): 65 W
2. Typical Power Consumption (Without Heating): 17.1 W
3. Low-Power Mode: 7 W**

Relay Mode:
1. Max Power Consumption (Including Heating) : 65 W
2. Typical Power Consumption (Without Heating):
- With DJI Dock 3/DJI Matrice 4 Series: 31.7 W
- With DJI Matrice 400: 37.9 W
3. Power Consumption (No Aircraft Connected):
- With DJI Dock 3/DJI Matrice 4 Series: 29.7 W
- With DJI Matrice 400: 30.6 W

* Measured in a controlled environment for reference only. Actual power draw may increase when factoring in power supply inefficiencies.
** Avoid using low-power mode in temperatures ranging from -40°C to -20°C (-40°F to -4°F).

1. DJI Dock 3 PoE Output Port
2. Third-party PoE Power Supplies:
IEEE 802.3bt Type 4 (PoE++): 52 V to 57 V output, max 99.9 W per port; operating range -40° to 55° C (-40° to 131° F)
IEEE 802.3bt Type 3 (PoE++): 50 V to 57 V output, max 60 W per port; operating range -30° to 55° C (-22° to 131° F)
IEEE 802.3at Type 2 (PoE+): 50 V to 57 V output, max 30 W per port; operating range -20° to 55° C (-4° to 131° F)

The device does not support non-standard PoE or Type 1 power supplies; connecting an unsupported supply will cause the indicator light to turn solid red. Please note that Type 2 power supplies are only supported when operating in Gateway Mode.

Battery preservation mode is enabled by default when powered via PoE. In the event of a sudden power loss, estimated runtime is:
Gateway Mode: approx. 45 min
Relay Mode: approx. 30 min

Note regarding Battery Preservation Mode: When running on PoE, the system holds battery voltage between 7.0 V and 7.4 V to protect the battery, preventing a full charge. Batteries inserted at over 7.5 V will automatically discharge to this safe range. Note: Operating in low temperatures can reduce battery efficiency and overall runtime

Supports 9V or 12V PD charging. DJI 65W Portable Charger is recommended before deployment. When fully charged, estimated runtime in Gateway Mode is approx. 2 hours.
Charge time (65W PD): approx. 2.5 hours

Charging via a 5V power supply is strictly limited to when the device is in a powered-off state. Furthermore, all charging operations require an internal battery cell temperature ranging from 0°C to 55°C (32°F to 131°F).

WAN/LAN Ports: Ethernet interface supports up to 10kA (total discharge current) surge protection, meeting EN/IEC 61643-21 Category C.

The RJ45 port features a 1.5kA (8/20μs waveform) surge protection capacity, compliant with EN/IEC 61643-21 Category C standards. However, this protection is only as effective as your system's grounding. To properly mitigate surge risks, ensure reliable and adequate grounding is established during installation.

IEEE 802.3bt Type 4 (PoE++): -40° to 55° C (-40° to 131° F)
IEEE 802.3bt Type 3 (PoE++): -30° to 55° C (-22° to 131° F)
IEEE 802.3at Type 2 (PoE+): -20° to 55° C (-4° to 131° F)

The maximum operating limit of 55°C (131°F) accounts for solar radiation exposure. At the minimum threshold of -40°C (-40°F), a windless environment is strictly required; auto-restart functionality is disabled under windy conditions at this temperature. Furthermore, cold-weather heating startup necessitates an IEEE 802.3bt Type 3 (PoE++) or higher power source. Following exposure to extreme temperatures, the internal backup battery must return to a range of 0°C to 45°C (32°F to 113°F) prior to charging.

In environments from -40° to -20° C (-40° to -4° F), the device can start up via cold-weather heating mode when powered by a PoE supply of 60 W or above.

To power this device, you must connect it to a Power over Ethernet (PoE) supply that is rated IEEE 802.3bt Type 3 (PoE++) or better.

To maintain the device's IP67 water and dust resistance, please ensure the following:
Use only an outdoor-rated, waterproof Cat 6 or higher cable (5.5 mm to 6.5 mm outer diameter) paired with the included corrugated tubing connector. Additionally, confirm that all rubber port covers and the DJI Cellular Dongle 2 heat sink are securely in place, and firmly tighten the screws on any unused WAN/LAN ports.

Note: The IP67 rating is based on controlled testing and may naturally decrease over time due to normal wear and tear.

Supports cameras using ONVIF and GB/T 28181 protocols

Supports up to 4 simultaneous 1080p H.264 video streams